baber/WOPTO huggingface dataset:
Patent GB-454188-A (GB)
Title: Improvements in tuning devices for radio apparatus
IPC: H01F27/00
Filed: 1935-10-31
Abstract: 454,188. Inductances. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 31, 1935, No. 30123. Convention date, Oct. 31, 1934. [Class 37] [See also Group XL] The tuning apparatus of a radio receiver provides for eight frequency bands, the inductance coils being arranged each with its associated trimmer condenser as a unit within the partitions formed by a seven-armed spider mounted on a rotatable shaft. In Fig. 1, three similar inductance units 16, 18, 20, each comprising eight coils 52 and trimmer condensers 60 are mounted on a shaft 10 which is rotatable through gearing by the handle 100. The units are screened from each other by metal partitions 32, 34, 36, and the coils are switched for waveband changing by rotating the whole assembly, contacts 66, 76, 72 on the units cooperating with fixed sets of contacts 68, 78, 74. The aerial inductances 48 are mounted on the same shaft and are pivotally attached to a metal disc 80 as shown in Fig. 4. The lowermost inductance of this unit is rotated to couple with the inductance of the unit 16 through apertures 112 in partition 32 and unit 16. The coils are each rotated through 90‹ at the lowermost position by a cam 84 engaging a pin 88. The knob 94, Fig. 1, which operates this cam is also arranged to form an index or click, registering the position of the inductances 48 for each wave-band. The switching contacts for the aerial unit comprise radial strips 108, Fig. 4, and fixed wipe contacts 110.
Patent GB-1394513-A (GB)
Title: Electric plug
IPC: G09B23/18
Filed: 1973-06-26
Abstract: 1394513 Two-part couplings A FISCHER 26 June 1973 [30 June 1972] 30191/73 Heading H2E The body 2 and two insulating pins 3 of a plug to engage a 2 pole socket (not shown) are moulded integrally in plastics, and wires 6 from electronic device 4 in cavity 5 in plug back are laid in grooves 7a along the outside of the pins 3, across the free ends 8 and back along the inner sides towards the plug body, where they spring away from the pins to ensure resilient contact with the socket; the wires also retain the device mechanically in the plug. Optionally to increase the spring force of the contacts, a small spring plate may be inserted in a slot in the plug body adjacent to the inside face of each pin, concave towards the pin, to urge the free ends 6a of the wire further from the pin (Fig. 3, not shown).
Patent GB-960532-A (GB)
Title: Valved bags
IPC: B65D30/24
Filed: 1962-08-07
Abstract: 960,532. Making valved bags. IMPERIAL CHEMICAL INDUSTRIES OF AUSTRALIA & NEW ZEALAND. Aug. 7, 1962 [Aug. 9, 1962], No. 30210/62. Heading B5D. [Also in Division B8] A valve is formed by inserting a flexible tube 18 in a bag (see also Division B8) aperture so that less than half is protruding, sealing it in this position and subsequently turning the protruding part inwards. The tube 18 has apertures 14 and 15 which are asymmetrically placed with respect to the bag slit which may be at an edge of the bag or in an end seam. During heat-sealing, which may be done by high-frequency electrical heating, a barrier sheet may be held between the walls to prevent these sealing together.
Patent GB-259064-A (GB)
Title: Improvements relating to boring and facing machines
IPC: B23B29/24
Filed: 1925-11-30
Abstract: 259,064. pearn, H. A., and Pearn & Co., Ltd., F. Nov. 30, 1925. Turning-In a boring and facing machine of the kind comprising a rotary head carrying a traversed facing tool and a central boring bar coaxial with the facing head, and having a facing tool box which is provided with an adjustable tool-holder so that the tool may be reset to take a fresh cut without moving the work, the toolbox a carries two tool holders c, d, which are secured by a single wedge g operated by a screw g<1> and engaging the inclined sides e, # of the holders. On releasing the wedge, the tools may be adjusted by means of screws y which engage segmental nut portions of the tool-holders and are provided with indicating means m. The tools are clamped in position by screws p.
Patent GB-324352-A (GB)
Title: Improvements in gramophone and the like records
Filed: 1928-10-19
Abstract: 324,352. Cumner, J. D. Oct. 19, 1928. Records. - Non-inflammable bendable records for gramophones consist of top and bottom layers of cellulose acetate and an inner layer of pulp board. The layers are cemented together with a mixture of amyl acetate and overproof methylated spirit in equal quantities. Decorations, illustrations, or wording may be impressed or printed on the pulp board, and on the inner faces of the outer layers. Specification 237,400 is referred to. Reference has been directed by the Comptroller to Specifications 17163/02, 16446/03, 222,177, and 247,429.
Patent GB-745024-A (GB)
Title: Improvements in or relating to metal food and beverage containers
Inventor: SHOTTON JAMES ARTHUR
IPC: C09D109/00
Filed: 1953-11-02
Abstract: Metal food and beverage containers are coated internally with a composition comprising a hydroxylated conjugated diolefin polymer or an ester thereof with an unsaturated fatty acid containing 12 to 24 carbon atoms or a mixed ester thereof with such acids and polybasic acids.  The diolefin polymer may be derived from butadiene-isoprene, piperylene, methylpentadiene, 2,3-dimethyl butadiene or may be a butadiene styrene copolymer.  The unsaturated fatty acid may be linseed, tung, oiticica, corn, castol, cottonseed, perilla or soybean oil acids, oleic, linoleic, and linolenic acids.  The polybasic acids may be phthalic, isophthalic, terephthalic, adipic, citric, fumaric, glutaric, maleic, malic, naphthalic, sebacic, succinic or tartaric acid. The esters may be produced by heating the hydroxylated polymers with oils such as linseed oil at 400 DEG  to 650 DEG  F. or with the fatty acids, drying oils and solvent at 200 DEG  to 600 DEG  F. Esterification with the two types of acids may be carried out in successive stages.  The compositions may include thinners, e.g. coal tar hydrocarbons, isopentane, mineral spirits, toluene, and petroleum distillates such as Stoddard solvent, and metal naphthenate driers. The diolefin polymers may be hydroxylated by reacting with hydrogen peroxide in solution in chloroform in the presence of formic acid as catalyst.
Patent GB-407129-A (GB)
Title: Improved railway lines
IPC: A63H19/30
Filed: 1932-10-28
Abstract: 407,129. Railway rails. LORE, M. A., 1, Kirby Road, Blackpool. Oct. 28, 1932, No. 30260. [Classes 104 (i) and 104 (ii).] Rails A for toy and light railways are made of rubber or rubber composition so that they may be bent to any desired curve. The cross-section may be as shown in Fig. 2, and they may rest in undercut recesses b in sleepers B, which are preferably formed of rubber &c. The lengths of rail may be connected by pins c fitting holes a<2> in the rails. Crossings may be formed of short-lengths A<1> mounted on a rubber &c. base D. Point rails are mounted on sleepers B<1>, B<2> adapted to slide on a base D<1>, one of tho sleepers being connected by a rod e to the operating lever E.
Patent GB-706331-A (GB)
Title: Improved machine for grinding the taper nose leads of screwing taps
IPC: B24B3/20
Filed: 1950-12-12
Abstract: 706,331. Taps. FINLAYSON, E. D. Nov. 23; 1951 [Dec. 12, 1950], No. 30317/50. Class 83 (3). [Also in Group XXIII] In grinding the taper nose of a tap 23 by turning the tap about its axis and also moving it laterally of its axis towards the grinding wheel 24 to produce backing off, the tap is simultaneously given a movement in the direction of its axis so as to produce a spiral or helical eccentric relief.
Patent GB-297241-A (GB)
Title: Improvements in or relating to kilns
IPC: F27B17/00
Filed: 1927-11-12
Abstract: 297,241. Carborundum Co., Ltd., (Carborundum Co.). Nov. 12, 1927. Brick, pottery, and like kilns.-In a kiln for burning terra cotta, sanitary ware &c. by direct contact with heating-gases, and having a refractory combustion chamber 7 as described in Specification 266,140, the waste gas outlet ports 13 are distributed substantially uniformly over the floor of the kiln, and open into transverse flues 14 communicating with a longitudinal flue 16. Preferably two combustion chambers are provided, one at each side of the kiln chamber, and the lower parts of the bag walls 5 may be made of material having a higher thermal conductivity than that of the upper parts.
Patent GB-905108-A (GB)
Title: Improvements relating to an oilburner with an axially arranged burnerpipe in an air supply-pipe
IPC: F23D11/00
Filed: 1958-09-24
Abstract: 905,108. Liquid fuel burners. LIAGO-S.A. Sept. 24, 1958 [March 5, 1958], No. 30538/58. Class 75 (1). An oil burner comprises an oil pipe 1 surrounded by an inner air pipe 5 through which air flows without rotating and an outer air pipe 2 through which the air flows and rotates. The air is supplied tangentially to the outer air pipe 2. The flows of air in the two air pipes 2, 5 are controlled by flap-valves 9, 12 connected together for simultaneous operation by a link 17 which is adjustable in length. The ends of the link 17 are adjustably secured in slots in operating arms 11, 14 for the valves.
Patent GB-226563-A (GB)
Title: Vehicle body hood with horizontally guided longitudinal supports
IPC: B60J7/12
Filed: 1924-12-19
Abstract: 226,563. Kellner, A., (Assignee of Hannebohn, C. W. A.). Dec. 20, 1923, [Convention date]. Hoods. - In vehicle hoods, to each cranked pivoted column of the hood is hinged a bell-crank lever one arm of which is connected by a rod to a supporting lever rotatable on the column and carrying the rear longitudinal support which is guided in known manner parallel to the upper edge of the vehicle body, while the other arm of the bell-crank lever is connected by a link to the stay-rod of which the head part hinged to the column turns the column on its pivot when the front longitudinal support is raised and simultaneously folds the stay-rod. The parts 20, 21 of the longitudinal supports are carried by the main pillar 18 by means of a bell-crank lever 17 and are connected to the stay-rod 8, 10 bv crossed links 23, 24, link 15, and bell-crank lever 13. The main pillar is carried by a bar 5 pivoted to the vehicle body at 4, and the bell-crank lever 17 is connected to the stay-rod 8, 10 by links 7, 16 and a cranked lever 6 pivoted on the main pillar. On raising the front portion 21, the joint 9 of the stay-rod 8, 10 is broken by means of the crossed links 23, 24, link 15, and lever 13, and the stayrod is folded automatically by the tubular spring stay 12. The folding of the stay-rod causes the main pillar 18 to be folded back about its pivot 4 and the longitudinal supports to move in a direction parallel with the body by means of the lever 6 and links 7, 16 acting on the bell-crank levers 17.
Patent GB-1253576-A (GB)
Title: Improvements in and relating to feeding bottles
Inventor: LEVIN SCHNEIR SIMON
IPC: A61J9/00
Filed: 1969-06-17
Abstract: 1,253,576. Feeding bottles. S. S. LEVIN. 17 June, 1969, No. 30689/69. Heading A5X. A feeding bottle comprises a tubular supporting member 5, a wedging element 6, a liquid holding bag 7 clamped between the member 5 and element 6, and a teat 12 engaging the bottle. The element 6 may be cupshaped and include at least one orifice 8. The teat 12 may be stretched over the upper rim 11 of the element 6. In an alternative construction, the teat may be secured between the rim 11 of the element and a cap (15), Fig. 2, (not shown) which is threaded onto the rim 11, the cap including an aperture through which the head of the teat projects. For stowing, the teat may be reversed, and a disc (18) disposed between the teat and cap to close the aperture in the cap. A kit comprising the individual parts of the bottle may be provided. The tubular member may be apertured or calibrated to indicate the quantity of liquid in the bag.
Patent GB-191545-A (GB)
Title: Improvements in or relating to rubber band tyres
IPC: B60C7/00
Filed: 1921-11-17
Abstract: 191,545. Killen, E. B. Nov. 17, 1921. Non.metallic elastic bodies and cores; tread projections and surfaces.- A solid rubber band tyre has the side-portions 8, 9 of its base vulcanized to the corresponding parts 1, 2 of a metal foundation-band (or to two separate bands with a distance-ring) so as to leave an air-space 7 which is bounded by the flat inner periphery 3 of the tyre. The tyre is preferably formed of arcuate cross-section so that the effective width of the tread varies with the load. The sides of the tyre are formed with deep recesses 17, 20, staggered as shown. Specifications 116,390 and 148,007 are referred to.
Patent GB-1293052-A (GB)
Title: A pilgrim type rolling mill
Inventor: PEYTAVIN P
IPC: B21B21/00
Filed: 1970-06-24
Abstract: 1293052 Pilger rolling mills VALLOUREC (USINES A TUBES DE LORRAINE-ESCAUT ET VALLOUREC REUNIES) 24 June 1970 [24 June 1969] 30701/70 Heading B3M The reciprocating cage 1 of a pilger rolling mill is driven by a crank-shaft 1, a universal joint 7, and a motor driven shaft 5, the shafts 4 and 5 being so tilted relative to each other that cyclic variations in the speed of the crank-shaft 4 are compensated for by the cyclic variations generated by the joint 7. Small speed variations still occur, but these can be further diminished by employing a second universal joint and a reducing gear between the shaft 5 and the motor. The reducing gear causes the second joint to rotate at double the speed of the first. In place of a single crank-shaft 4, two shafts rotating in opposite directions may be employed.
Patent GB-398669-A (GB)
Title: Improvements in or relating to knife blades
IPC: B26B3/02
Filed: 1932-11-01
Abstract: 398,669. Table cutlery. CLARK, E. D. W., 56, Penistone Road, Sheffield. Nov. 1, 1932, No. 30725. [Classes 30 and 128.] Knives, forks, and spoons made from blanks, Fig. 3, cut out from sheet, strip, or forged metal, such as stainless steel, are twisted through 180‹ at the junction 11 of the integral blade 10 and handle or tang 12 to form a short helical flute 13, Fig. 1, which serves as a bolster and may be further strengthened by longitudinal corrugations which may extend beyond the bolster part and are formed prior to the twisting operation. To provide a convenient finger recess, the hand of the helix corresponds to the hand in which the implement is to be used. The blank may be under tension during twisting to reduce the shortening effect of the twist. The bolster part 11, Fig. 3, may have taper or parallel edges and scale or whittle tangs may be used. Fork blanks are of uniform thickness, but knife blanks preferably have thicker handle portions. Knives, which may be single or double-edged, are hardened and ground after twisting, the prongs of forks being cut out before twisting. According to the Provisional Specification the angle of twist may be greater or less than 180‹.
Patent GB-636081-A (GB)
Title: Improvements in transmission line systems
IPC: H03H7/48
Filed: 1947-11-20
Abstract: 636,081. Multiplex radio signatting. RADIO CORPORATION OF AMERICA. Nov. 20, 1947, No. 30829. Convention date, Dec. 6, 1946. [Class 40 (v)] In a multiplexing arrangement for radio carriers feeding a common aerial, particularly television sound and vision carriers, energy absorbing means is included in one transmission feed line effective for dissipating the energy of any carrier, not associated with that line but reflected down the line due to aerial mismatch, so as to prevent any further reflection and the production of a ghost signal. Transmission lines 1, 17 from picture and sound transmitters P, S terminate respectively as shown in a sleeve 7 and in a bifurcated line portion 10 with outer conductors connected to the sleeve and inner conductors connected to adjacently facing ends 8, 9 of a split outer conductor portion of the picture line, the arrangement being such that the picture carrier is fed in push-pull to transmission lines 22, 23 feeding a turnstile antenna A and the sound in parallel, a phasing loop 24 in one line 23 producing a 90 degree phase change of the signals. The sleeve transforms the picture carrier from an unbalanced to a balanced to ground system. The bifurcated portion of the sound line is of length presenting a large impedance to the picture carrier. According to the invention reflected picture signals due to aerial mismatch are prevented from entering the picture transmission line since they are in phase at the points 8, 9 and from being ghost reflected from the sound line by a T-shaped branch transmission line absorbing the reflected picture carrier but effectively absent to the sound carrier. To this end the T-limb is located at a high impedance point to the picture carrier in the main section of the sound line and is of length #s/4 terminating in a resistance 40, with open-ended arms of length #p-#s/4 and #s/4, where #p, #s are the picture and sound carrier wavelengths. In a modification the T-branch may be located at any point on the sound line provided it is spaced #p/4 in front of a further similar T-branch having no absorbing resistance 40. By the above arrangements cross-modulation is avoided and the polar circularity of a turnstile aerial retained.
Patent GB-839831-A (GB)
Title: Processes for the preparation of alpha-hydroxy organic acids or esters thereof
IPC: C07C51/12
Filed: 1958-09-26
Abstract: In a process for the preparation of a -hydroxy primary organic carboxylic acids, an aldehyde having the general formula <FORM:0839831/IV (b)/1> wherein R1 represents a hydrocarbyl radical or substituted hydrocarbyl radical connected to the carbon atom of the formyl group through an aliphatic carbon atom is reacted with carbon monoxide in a liquid phase comprising sulphuric acid of a concentration above 90%, at a temperature of from approximately - 10 DEG  C. to approximately 60 DEG  C., the resulting reaction mixture being diluted with water and a -hydroxy primary organic acid being separated from the resulting diluted reaction mixture.  In a modification of the process esters of alphahydroxy primary organic carboxylic acids are prepared by adding an alcohol instead of water to the reaction mixture obtained on completion of the reaction of carbon monoxide with the aldehyde.  The hydrocarbyl group of the aldehyde may contain one or more substituents inert under the reaction conditions, e.g. halogen e.g. chlorine or -NO3 or > CO groups or the aldehydes may contain more than one aldehyde group. Aldehydes specified include aliphatic aldehydes having from 2 to 20 carbon atoms, aralkyl aldehydes e.g. phenyl-acetaldehyde and especially such aldehydes as have the formyl group separated from the aromatic nucleus by at least four carbon atoms and aldehydes obtained from the Fischer Tropsch process.  The carbon monoxide employed in the process may contain e.g. hydrogen, nitrogen or carbon dioxide and/or minor amounts of saturated hydrocarbons.  Atmospheric or elevated pressures may be used.  The aldehyde and carbon monoxide employed may be pretreated to remove water or impurities or both e.g. by distillation and treatment with e.g. charcoal, alumina and clays. The process may be carried out batchwise or continuously. Solvents which may be employed include liquid saturated hydrocarbons, e.g. heptanes and octanes and aliphatic ketones e.g. acetone.  The reaction mixture may be subjected to digestion after the addition of the carbon monoxide.  The preparation is described of a -hydroxydecanoic, a -hydroxy-isovaleric and a -hydroxy-propionic acids using n-nonylaldehyde, isobutyraldehyde and acetaldehyde as starting materials.
Patent GB-694882-A (GB)
Title: Improvements in or relating to clamps
Inventor: ELLIOTT JOHN
IPC: E04G13/04
Filed: 1950-12-20
Abstract: 694,882. Beam shuttering. ACROW (ENGINEERS), Ltd. Nov. 21, 1951 [Dec. 20, 1950], No. 31043/50. Class 20(ii) A clamp for shuttering for casting concrete beams in situ comprises two L-shaped structures 5, 6. 8 sliding in a guide beam 1 their distance apart, being adjusted by a right- and left-hand screw 11.
Patent GB-1247921-A (GB)
Title: Improvements in or relating to paint brushes
Inventor: MAY CHRISTOPHER JAMES
IPC: A46B15/00
Filed: 1968-06-28
Abstract: 1,247,921. Brushes. RICHARD LONSDALEHANDS ASSOCIATES Ltd. July 9, 1969 [June 28, 1968], No. 31116/68. Heading A4K. A brush A is recessed on one side to frictionally engage a smaller brush the bristles of which complete the bristle arrangement of the brush A. The brush A may be recessed to accommodate more than one smaller brush.
Patent GB-646215-A (GB)
Title: Improvements in or relating to radiant-energy direction-responsive apparatus
IPC: G01S3/78
Filed: 1947-11-26
Abstract: 646,215. Automatic direction finding- SPERRY GYROSCOPE CO., Inc. Nov. 26, 1947, No. 31345. Convention date, Dec. 7, 1946. [Class 38 (iv)] [Also in Group XL (b)] Relates to a direction-finding apparatus in which an image of the object whose direction is desired is caused to fall on light-sensitive apparatus and trace thereon a circular path whose centre is displaced in accordance with the deviation of the object from the aiming line of the light-senstive apparatus. According to one aspect of the invention, the signals produced are alternating and have a phase corresponding to the direction of the object. According to another aspect of the invention, the image is caused to trace a circular path by a rotating suitably tilted mirror. According to further aspects of the invention, the light-sensitive apparatus is of elongated narrow shape, and is fed with H.F. A.C. Light from a star falls on a tilted rotating mirror 53, Fig. 2, and is focussed in the plane of two light-sensitive cells consisting of linear cathodes 55, 57 at right-angles; the image of the star is thus caused to rotate in a circle, intersecting the cathodes of the cells to produce pulses. The pulses from each cell are amplified at 67, 75 respectively and their phases compared at 71, 77 with oscillations from a generator G actuated by the motor 14 driving the mirror. If the circle traced by the star image is symmetrical, the phase-sensing devices 71, 77 produce no output, but any departure from symmetry causes one or both to produce an output which is applied to motors 37, 45 to orient the apparatus 12, 13 to restore symmetry. As shown in Fig. 1, the apparatus 12, 13 is mounted on a gyroscopically levelled table 25 and the motors 37, 45 control azimuth and elevation. The cells 55, 57 may be separated, Fig. 3 (not shown), light reaching them through or by reflection from a half-silvered reflector. The cells may be fed with A.C. of a frequency to which the amplifiers 67, 75 are tuned, Fig. 4 (not shown). A harmonic of the basic pulse frequency (i.e. that given when the motors 37, 45 are idle), may be utilized for phase comparison. The shaft carrying the mirror may be kept vertical gyroscopically instead of the table 25, Fig. 5 (not shown).
Patent GB-761205-A (GB)
Title: Improvements relating to the disproportionation of halogenosilanes
IPC: C01B33/107
Filed: 1954-10-29
Abstract: Trihalosilanes of the formula SiHX3, where X is halogen, are disproportionated, mainly to dihalo and tetrahalo silanes, by heating in the presence of a tertiary amine of the formula NR1,R2R3 where R1, R2 and R3 are the same or different alkyl radicals.  The reaction is preferably effected by refluxing at atmospheric pressure when it is preferred that the alkyl groups in the amine have more than 2 carbon atoms.  The amine catalyst may constitute about 2 to 30 per cent by weight of the trihalosilane.  In the examples: (1) trichlorosilane is refluxed with tri-n-butyl-amine giving, after rectification, dichlorosilane with small amounts of monosilane and monochlorosilane; (2) as in (1) but n-propyl-di-n-butyl-amine is used.